An invoice is a commercial document issued by the seller to the buyer, indicating the items, quantities, and agreed prices for services or products the seller has provided you. With the guide of online invoicing software package, the clients can get emails with hyperlinks for viewing their particular online invoice. The client can go through the link to look at the bill, and then spend the bill with the help of online payment methods. The online invoice is a paperless process and that is environment friendly mainly because it reduces the printing from the bill, reminder letters, credit notes as well as postal charges.